Molding-machine.



'A. 0. BUGKIUS, JR. MOLDING MACHINE. APPLIOATION FILED DBO. 19, 1906. RENEWED JAN. 16, 1909 91 5, 1 58. Patenied Mar. 16, 1909.

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A. 0. BUGKIUS, JR-

MOLDING MACHINE. APPLIOATION FILED DEO.19, 1906. RENEWED JAN. 16, 1909. 9 1 5, 1 58.

Patented Mar. 16, 1909.

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INVENTOR WITNESSES A Tn: mmnls PETERS co.. wnsmuaran, n. c.

UNITED PATENT ALBERT O. BUCKIUS, JR, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE NATIOhlAL MALLEABLE CASTINGS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MOLDING-MA CHINE Patented March 16, 1909.

Application filed December 19, 1906, Serial No. 348,569. Renewed January 16, 1909. Serial No. 72,739.

T 0 all whom it may concern:

Be it known that I, ALBERT O- BUoxiUs, Jr., of Chicago, Cook county, Illinois, have invented a new and useful Improvement in Molding-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a front elevation partly in section of my machine showing the core-box in raised position; Fig. 2 is a top plan view showing the core-box inverted and resting on the table Fig. 3 is a side elevation showing in dotted lines the core-box in an intermediate position; Fig. 4 is a vertical section on the line IVIV of Fig. 1.

The machine shown in the drawing, is especially adapted for the molding of cores, although with suitable modifications it may be employed for making sand molds. Its advantages are that it dispenses with the hand manipulation of the core-box and affords a straight draw by which the corebox is lifted from the cores without danger of marring or injuring them. It therefore enables the cores to be made with unskilled labor, and of as great excellence as can be made with the most careful hand work.

In the drawing which shows the preferable form of my device, 2 is the core-box, preferably set removably in a core-box-frame 3, so that one box may be substituted for an other when desired, or the core-box and frame may be made of a single piece, the core-box-frame is carried by pins 4 at the ends of links 5- connected to a bell-crank lever 6 which is fixed to a rotary shaft 7 and is'manipulated by a handle 8.

The core-box-frame has at its opposite ends vertically slotted guide-bars 9 mounted on blocks 10 which in turn are pivotally connected to swinging guide-arms 11. These arms 11 are slotted longitudinally and in the slots thereof are rollers 12, which are applied to the pins 4. The lower portions of the slots of the guide-arms 11 are straight, but near their upper ends they are curved, as at 13, and below the curved portions the slots terminate in straight portions 14.

When the machine is in position for mold ing the cores, the bell-crank lever 6 has been turned so as to raise the links 5 into the upright position shown in Figs. 1 and 2, at which time the rollers 12 on the pins 4, are at the upper portions of the guard arms 11, and the parts are held in proper position by stops 7 and 7 on the shaft 7 and machine frame respectively. When in this position the molder fills the cavities of the core-box with sand which he packs therein, and then places on top of the core-box over the cavities a plate 15 which is held upon the core-box by clamps 16, preferably actuated by springs 16. The operator then turns the bell-crank lever so as to draw the pins 4 downwardly in the slots of the guide-bars 9, by which motion the rollers on said pins are caused to move down in the slots of the guide-arms 1.1 and to enter the curved portions of said slots, whereupon, by a swinging motion of the corebox frame on the pins 4 and a swinging motion of the slotted guide-arms 11, the core box-frame is quickly inverted, turnin g on the 1 blocks 10, on the pivotal axis of said arms hen the box has thus been inverted a continued motion of the bell-crank lever draws the core-box downwardly, the rollers 12 traveling vertically in the slotted guidearms 11, and the guide-bars 9 move down' wardly over the blocks 10 until the plate 15 of the core-box comes to a rest or tablesup port 17 at the base of the machine, on which it rests (Fig. 3). The operator then with a mallet taps the bottom of the core boxframe so as to loosen the cores in the cavities, and for this purpose I prefer to provide a rapping-frame 18, which is attached to the core-box-frame. The clamps 16 are then released so as to free the core-box-plate, and the bell-crank-lever is moved in the reverse position, thereby elevating the core-boxframe and core-box, causing it to travel with an exact vertical motion in the slots of the guide-arms 11 until the roller 12 reaches the curved portion 13, whereupon the core-boxframe is quickly inverted and when brought into upright position is moved upwardly to the limit of the slots in the guide-arms, which is the original position at which the core-box is adapted to be charged with sand.

Those skilled in the art will be able to modify the device in many ways, since What I claim is 1. A molding machine having a molding frame or box, a cover plate removably associated with the box, means for moving the box vertically and guides by which in such motion the box after discharging is first directed upwardly in a vertical direction and is then inverted substantially as described.

2. A molding machine having a molding frame or box provided with vertical guides mounted to slide on swinging arms to which they are connected pivotally, and slides working in guides on said arms which guides are curved to cause the inverting ol' the frame or box substantially as described.

3. A molding machine having a molding frame or box provided with vertical guides mounted to slide on swinging arms to which they are connected pivotally, and slides working in guides on said arms which guides are curved to cause the inverting of the box, and lever mechanism by which the box is actuated vertically substantially as described.

4. A molding machine having a molding frame or box, a cover plate removably associated with the box, means for moving the box vertically and guides by which in such motion the box after dischar ing is first directed upwardly in a vertical direction and is then inverted, said means consisting of a lever and link substantially as described.

5. A molding machine having a molding frame or box, a cover plate removably associated with the box, means for moving the box vertically and means by which in such motion the box, after discharging, is automatically directed upwardly in a vertical direction and then inverted substantially as described.

6. A molding machinehaving a vertically movable molding frame or box, a cover plate removably associated with the box and mechanicalmeans for inverting the box at molding position, then lowering the same in a straight vertical direction to permit discharging and vice versa, substantially as described.

7. A molding machine having an invertible and vertically movable molding frame or box, a cover late removably associated with the box, mec ianical means for raising and lowering the box, and guides associated with the box and constructed to cause the box to move in a straight vertical direction during the lower portion of its path and to be inverted adjacent its upper limit in the upward direction of movement of the stantially as described.

8. In a molding machine, the combination of a frame, a swinging element mounted on the frame and having a guideway which is straight in one portion and arcuate in another portion, a vertically movable and invertible molding box or frame having a trumiion working in the guideway, means associated with the trunnion for raising and lowering the box, a guid'eway carried by the box, and a slide carried by the swinging element concentric with respect to the arcuate guideway portion and working in the guideway of the box, substantially as described.

9. In a molding machine, the combination of a frame, a pair of swinging members mounted upon the frame and provided with box, su bcorresponding guideways which have straight lower portions and arcuate upper portions, a vertically movable and invertible molding box or frame having trunnions working in the guideways, guide arms depending from the box and provided with straight guideways, slides carried by the swinging members concentric with their arcuate guideway portions and working in the guideways of the respective guide arms, an actuating rock bar mounted upon the frame, crank arms upon the rock bar, and links between the crank arms and the respective trunnions for raising and lowering the molding box, substantially as described.

10. A molding machine having a vertically movable molding frame or box, a cover plate removably associated with the box, and mechanical means for inverting the box at molding position, then lowering the same to discharging position, then elevating the box in a straight line to withdraw the box from the mold and then inverting the box after it has been withdrawn from the mold to return it to molding position, substantially as described.

In testimony whereof, I have hereunto set my hand.

ALBERT O. BUOKIUS, JR. l/Vitnesses THOMAS H. ROBINSON, EDWARD 0. BROWN.

Correction in Letters Patent No. 915,158.;

granted March 16, 1909, upon the application of Albert 0. Buckius, Jr., of Chicago Illinois, for an improvement in Molding-Machines,

Was erroneously written and printed The National Malleable Castings Company,

of Chicago, Illinois, a corporation of Illinois, Whereas said name should have been Written and printed The National llfalleable Castings Company, of Chicago, Illinois, a corporation of Ohio; and that the said form to the record of the case in the Patent Ofifioe.

Signed and sealed this 4th day of May, A. D., 1909.

SEAL o. o. BILLINGS,

Acting Commissioner of Patents. 

